Question

I am trying to use core-plot and I followed the instruction from the following project page to use it.

http://code.google.com/p/core-plot/wiki/UsingCorePlotInApplications, which is

You can install the SDK with a standard Mac installer package, or by hand. Here is how you install by hand.

1. Copy the CorePlotSDK directory to ~/Library/SDKs/

2. Add to your project’s .PCH file:

   #import < CorePlot/CorePlot.h >

3. Open Project -> Edit Project Settings and for All Configurations:

3a. Add to Additional SDKS:
$HOME/Library/SDKs/CorePlotSDK/${PLATFORM_NAME}.sdk

3b. Add to Other Linker Flags:
-ObjC -all_load -lCorePlot

1. Add the QuartzCore framework to the project.

2. Add a CPGraph to your application.

I went with the SDK install options: I installed it with Mac installer Package, it got installed in the following location /Library/SDKs/iphoneos.sdk and /Library/SDKs/iphonesimulator.sdk

Then i did step 2 as mentioned.

For 3a i added /Library/SDKs/iphonesimulator.sdk

Then i did 3b and then 4.

After that I tried to do a build and see how does it works and i get the following errors:

:1:0 :1:1: warning: “__IPHONE_OS_VERSION_MIN_REQUIRED” redefined

:1:0 :1:1: warning: this is the location of the previous definition

/var/folders/+r/+rBG+BziF1OqK12XNyw1ak+++TM/-Caches-/com.apple.Xcode.502/CompositeSDKs/iphonesimulator-iPhoneSimulator4.1-cztutytisanvsqaptkdkpoyyctln/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:250:0 /var/folders/+r/+rBG+BziF1OqK12XNyw1ak+++TM/-Caches-/com.apple.Xcode.502/CompositeSDKs/iphonesimulator-iPhoneSimulator4.1-cztutytisanvsqaptkdkpoyyctln/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:250: error: syntax error before ‘^’ token

/var/folders/+r/+rBG+BziF1OqK12XNyw1ak+++TM/-Caches-/com.apple.Xcode.502/CompositeSDKs/iphonesimulator-iPhoneSimulator4.1-cztutytisanvsqaptkdkpoyyctln/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:250:0 /var/folders/+r/+rBG+BziF1OqK12XNyw1ak+++TM/-Caches-/com.apple.Xcode.502/CompositeSDKs/iphonesimulator-iPhoneSimulator4.1-cztutytisanvsqaptkdkpoyyctln/System/Library/Frameworks/UIKit.framework/Headers/UIView.h:250: error: ‘type name’ declared as function returning a function

This appears 20 times. and it points all to UIView.h

There are same question in the stackoverflow and people suggested to change the compiler to 4.2 and for lot of people it worked, but for me the compiler was always set to 4.2 and still I get the same error.

On 3a if do /Library/SDKs/iphoneos.sdk

I get the following error

error: Composite SDK failed: The base SDK uses platform ‘iphonesimulator’, but an additional SDK uses platform ‘iphoneos’. All SDKs must use the same platform (PLATFORM_NAME).

Please help

Answer 1

Finally, I have figured out the solution for this error:

Thanks to the developer on core-plot project and sebastien.leduc a google code user for their help.

I am using CorePlotInstaller_0.2.2.zip, and one important steps that is missing on the installation guide is you have to use LLVM GCC 4.2 and not GCC 4.2.

The other important steps which was little confused me was 3a.

Add to Additional SDKS: $HOME/Library/SDKs/CorePlotSDK/${PLATFORM_NAME}.sdk

Here you have to literally add the above line, I was changing the ${PLATFORM_NAME} with iphoneos or iphonesimulator, but no we don’t have to do that.

One last thing if you don’t find the sdk on the following path $HOME/Library/SDKs/CorePlotSDK

Check out /Library/SDKs/CorePlotSDK.

I hope this will help people, it took me about a week to figure out with the help of all the people who came forward to help.